论文部分内容阅读
目的 比较 1种复合体 (Dyract)和 4种树脂化玻璃离子水门汀 (FujiIILC ,Photac Fil,VariGlass,Vitremer)在水中释放氟离子的能力。方法 用氟离子选择电极 ,分别在第 1、7、30d直至2 5 3d ,测定 5种材料固化后标本浸泡溶液中的氟离子浓度。结果 除复合体以外的所有材料 ,均显示了高的初期氟离子释放并急剧下降 ,然后缓慢下降。结论 复合体释放的氟离子比树脂化玻璃离子水门汀少。对于龋病高发的患者 ,选择高氟离子释放的树脂化玻璃离子水门汀材料较好
Objective To compare the ability of one kind of composite (Dyract) and four kinds of resinized glass ionomer cement (FujiIILC, Photac Fil, VariGlass, Vitremer) to release fluoride in water. Methods Fluoride ion-selective electrodes were used to measure the fluoride ion concentration in the soaking solution of the five materials after the first, the seventh, the third, the third, the twenty-fifth, and the third, respectively. Results All materials except the composite showed high initial fluoride release and a sharp decrease, then a slow decline. Conclusion The complexes release less fluoride than resinated glass ionomer cement. For patients with high incidence of dental caries, the choice of high fluoride ion release resin ionized glass cement material is better